Corner piece



FIG. 1 is an isometric view of a third embodiment of a corner piece in accordance with the present invention;

FIG. 2 is a side elevational view of a first side of the corner piece of FIG. 1;

FIG. 3 is a side elevational view of a second side of the corner piece of FIG. 1;

FIG. 4 is a front elevational view of the corner piece of FIG. 1;

FIG. 5 is a rear elevational view of the corner piece of FIG. 1;

FIG. 6 is a top plan view of the corner piece of FIG. 1; and,

FIG. 7 is bottom plan view of the corner piece of FIG. 1. 

CLAIM The ornamental design for a corner piece, as shown and described. 